Info
Insider Ownership

Insider Trading & Ownership of KUMI YAMAMOTO BARUFFI

Location: Tacoma, WA
Summary: The estimated net worth of KUMI YAMAMOTO BARUFFI is at least $1,970,204 dollars as of 02 Mar 2026. KUMI YAMAMOTO BARUFFI is the EVP General Counsel, Corp Sec of COLUMBIA BANKING SYSTEM, INC. and owns shares of COLUMBIA BANKING SYSTEM, INC. (COLB) stock worth about $1.97M.
Signature: /s/ Andrea M. Newburn, Attorney-in-fact
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Ownership of KUMI YAMAMOTO BARUFFI

Symbol	Company	Relationship	Holdings Value	Past Year Net Change	Change %	Report Period
COLB	COLUMBIA BANKING SYSTEM, INC.	EVP General Counsel, Corp Sec	$1,970,204			01 Mar 2026

Insider Transactions Reported by KUMI YAMAMOTO BARUFFI:

Sym	Company	Class	Transaction	%	Value $	* Price $	Shares	Shares After	Date	Ownership

* An asterisk sign (*) next to the price indicates that the price is likely invalid.